Dyfyniad APA

Lehmann, D. R. (2003). Product management/3ed (3rd ed.). Tata Mc-Graw-Hill.

Dyfyniad Arddull Chicago

Lehmann, Donald. R. Product Management/3ed. 3rd ed. New Delhi: Tata Mc-Graw-Hill, 2003.

Dyfyniad MLA

Lehmann, Donald. R. Product Management/3ed. 3rd ed. Tata Mc-Graw-Hill, 2003.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.